Oriskany Dive

According to a picture I once took, 111 ft in the clear blue Pacific
seems to be one such limit.

The picture is of my computer displaying 111. I have no idea why I
took it, I tell people "the nitrogen told me to take it".

Lee Bell...

Sounds likely.

\"Magilla\"...

"Helium is your friend"

Grumman-581...

Oriskany... 215 ft, 25 minutes on bottom on air...
V-Planner 3.72 by R. Hemingway, VPM code by Erik C. Baker.

Decompression model: VPM - B

DIVE PLAN

Surface interval = 5 day 0 hr 0 min.

Elevation = 0ft

Conservatism = + 2

Dec to 200ft (4) Air 50ft/min descent.

Dec to 215ft (4) Air 60ft/min descent.

Level 215ft 20:45 (25) Air 1.58 ppO2, 215ft ead

Asc to 130ft (27) Air -30ft/min ascent.

Stop at 130ft 0:10 (28) Air 1.04 ppO2, 130ft ead

Stop at 120ft 1:00 (29) Air 0.97 ppO2, 120ft ead

Stop at 110ft 2:00 (31) Air 0.91 ppO2, 110ft ead

Stop at 100ft 2:00 (33) Air 0.85 ppO2, 100ft ead

Stop at 90ft 3:00 (36) Air 0.78 ppO2, 90ft ead

Stop at 80ft 3:00 (39) Air 0.72 ppO2, 80ft ead

Stop at 70ft 4:00 (43) Air 0.65 ppO2, 70ft ead

Stop at 60ft 5:00 (48) Air 0.59 ppO2, 60ft ead

Stop at 50ft 8:00 (56) Air 0.53 ppO2, 50ft ead

Stop at 40ft 9:00 (65) Air 0.46 ppO2, 40ft ead

Stop at 30ft 14:00 (79) Air 0.40 ppO2, 30ft ead

Stop at 20ft 22:00 (101) Air 0.34 ppO2, 20ft ead

Stop at 10ft 37:00 (138) Air 0.27 ppO2, 10ft ead

Surface (138) Air -30ft/min ascent.

Off gassing starts at 154.5ft

OTU's this dive: 59

CNS Total: 35.9%

266.7 cu ft Air

266.7 cu ft TOTAL

It's possible... Serious narc potential though...

\"Magilla\"...

And as archaic as a race car without a five point seat belt, fire suit &
helmet.

This is not even worth discussing.

Grumman-581...

Awh, gee, you're no fun...

The ship is not even sunk yet and I already have people lining up to dive on
it. I sense another rec.scuba dive in the making. If it's going to happen,
I might as well start keeping track of it unless there's someone else
interested in taking the lead.

\"Magilla\"...

Definitely don't want the lead, and would probably opt out of that one
done as an open group.

-hh...

Curtis, don't worry about the diving part. The social topside stuff is
just as important as the actual dive itself.

\"Magilla\"...

As I am well aware. Still, I would feel compelled by the temptations
presented to be selective on a "social" like this.

I figure to do that one with just some trusted friends.

-hh...

But of course.

\"Magilla\"...

And of course, some here.

Sorry if I'm sounding "elitist", but that's gonna be recreational limits
at the deck, definite tech dive to the sand, if sunk as planned.

-hh...

Its got to get down first. Then whoever's available whenever to go can

\"Magilla\"...

Ain't that the truth.

decide what dive plan they're comfortable with. While you're off to
the depths, there's sure to be those who are happy with the main deck
and/or conning tower (~60ft minimum).

\"Magilla\"...

That would be the ideal thing, unfortunately, reality differs sometimes.

This one I will only do with a small group by invitation, respectfully
decline otherwise.

Greg Mossman...

I don't see how the Oriskany differs from any "bottomless" wall dive, that
thousands of PADI OW divers do daily around the world without any problems.
There may be a few, like Bob, who bounce to the depths, but most of us are
happy with recreational depths. I rarely break 115' or 120' on wall dives
even though there's obviously hundreds of feet of good stuff to see below
me, and most people I dive with are happy staying shallower than that.

Grumman-581...

Theoretically, it's a bit different... With a typical wall dive, it's just a
repeat of what you have seen in the shallower portions of the wall, except
with possible less life and lack of color (unless you have a light with
you)... For a wreck, there is definitely something different down there -- a
completely different part of the ship... The potential for problems is
probably related to the fact that to see the engineering spaces, you're
going to have to go deep in addition to it being a penetration dive... To
see the shafts, you're going to Do they plan to open up the entire ship for
diving or have they welded some of the hatches shut? Having been stationed
aboard an aircraft carrier, I'm well aware of the fact that it can take a
bit of time to travel from various compartments that are below the waterline
to hatchways that are open in the hangar deck or such... I have to wonder
how much they opened her up in preparation for the sinking... Normally, the
mess deck (i.e. 2nd Deck) is open the full length of the ship, but lower
decks tend not to have passageways that run the length of the ship... If
they did not open up the hull anywhere, I suspect that access to the
machinery rooms will need to be accomplished via entrance at one of the
aircraft elevators, down a hatch to the 2nd Deck, along the passageways
until encountering the appropriate hatch and ladderway that might lead
further down to the desired compartment... One thing to note is that
adjacent compartments that were normally below the waterline do not always
have hatches between them... In many cases to go to an adjacent compartment,
you are required to go up a deck, across the ship, and down a deck... A
favorite phrase issued to new sailors aboard ship is, "you can't get there
from here"...

Rather than look back to try and figure out who has expressed interest, I'll
simply offer the opportunity to anyone interested to do so now. I captured
only three names as they went by: hh, Magilla and Chuck, a friend from
another forum. If I missed your name, please accept my apology and send it
again. If you do not use a real name and e-mail address in rec.scuba,
please send a private message to me that includes both as well as something
to remind me to keep your information confidential.

This is an expression of interest, not a commitment to the trip. It will
keep you in the loop until the ship is available for diving and more
detailed plans are being made.